21
No Video, Dark Blue Screen
No
Yes
No
No
BT30V,
SUB9V
SUB5V
OK ?
Did this
fix the
problem?
Yes
Problem Solved
No Video
Blue Screen
Try using a different video input source.
Try the Tuner, Component, S-Video or
HDMI input.
Check for the BT 30V, SUB 9V, &,
SUB5V voltages on connector AP3
of the AP board. Refer to the AP Board
test point locations on Slide 13.
Check the video input connections and
termination points for a possible cold
solder joint or connection problem.
Does any
input
work?
Replace the A Board
To next page
.
Replace defective Regulator and
biasing components. Reference
the power distribution diagram on
Slide 10 for location.
Yes
Summary of Contents for Lx-600
Page 6: ...6 Board Description...
Page 31: ...31 Pedestal Removal...
Page 32: ...32 Pedestal Removal...
Page 33: ...33 The End The End...
